제출 #1143708

#제출 시각아이디문제언어결과실행 시간메모리
1143708sanoHotter Colder (IOI10_hottercolder)C++20
50 / 100
401 ms8240 KiB
#include "grader.h" #include<iostream> #include<vector> using namespace std; int ries1(int l, int r) { if (r - l < 3) { Guess(l); int x = Guess(r); if (x == 0) return (l + r) / 2; if (x == -1) return l; if (x == 1) return r; } Guess(l); int p2 = l + ((r - l) / 3) * 2; int x = Guess(p2); if (x == -1) { return ries1(l, (l+p2)/2 - ((l+p2) % 2 == 0)); } if (x == 1) { x = Guess(p2 + 1); if (x == -1) return ries1((l + p2) / 2 + 1, p2); if (x == 1) return ries1(p2 + 1, r); } if (x == 0) { return (l + p2) / 2; } return -1; } int HC(int n) { return ries1(1, n); }
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